The super PAC in question is the Coalition of Americans for Political Equality PAC, a mysterious Washington-based group better known as CAPE PAC whose stated mission is “restoring conservative values in the politicians elected to represent all citizens of the United States of America.”

But as some Republicans see it, there’s a different and more nefarious mission at CAPE PAC: fleecing GOP donors.

What’s most worrisome is the series of candidate-specific websites the organization has set up to invite donors to support particular congressional hopefuls. To an untrained eye, the websites suggest donors are contributing directly to a candidate’s campaign.

The page for California Rep. Ed Royce, for example, is emblazoned with the slogan “Elect Royce 2012.” It summarizes the Republican’s stance on a variety of issues and even includes pictures that are taken right off the congressman’s official website. The site also features a “donate now” button for visitors to click on.

But those dollars don’t go to Royce’s coffers — or for that matter, to any of the 38 other Republicans who have their own CAPE PAC fundraising pages. It goes right to CAPE PAC.

“To me, it looks like a total scam, and it will do nothing for the candidates it claims to be supporting,” said Dave Gilliard, Royce’s longtime political consultant. “I think it’s someone who’s trying to make money off these candidates.”

Anna Nix, a spokeswoman for Florida Senate candidate George LeMieux, another hopeful included on the group’s website, said the campaign was baffled by it. “We’ve never heard of the PAC before,” she said. “We learned about the website through a Google alert.”

The 2012 election season has seen a proliferation of outside groups in the wake of the Supreme Court’s Citizens United decision, which cleared the way for a flood of campaign spending from third-party organizations that operate with free rein. In many instances, the groups are providing a helpful supplement to parties and candidates they support. But in some other cases, they are turning out to be headaches. Last month, the National Republican Congressional Committee announced that it was severing ties with several consulting firms that had been doing business with the Campaign for Primary Accountability, a Houston-based super PAC that has been targeting incumbents from both parties in primaries.

But the issues with CPA were very different — the group was targeting Republican incumbents, which runs counter to the NRCC’s mission. The concerns about the CAPE PAC revolve around the question of deceptive practices.